<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>form表单</title>
</head>
<body>

<form action="http://www.tmooc.cn">
    用户名:<input type="text" name="username" placeholder="用户名" value="admin" maxlength="5"><br>
    密码:<input type="password" name="password" placeholder="密码" value="123456"><br>
    性别:<input type="radio" name="gender" value="m" id="r1">
    <label for="r1">男</label>
    <input type="radio" name="gender" checked value="w" id="r2">
    <label for="r2">女</label> <br>
    兴趣爱好:<input type="checkbox" name="hobby" value="cy" checked>抽烟
    <input type="checkbox" name="hobby" value="hj">喝酒
    <input type="checkbox" name="hobby" value="tt">烫头<br>

    生日:<input type="date" name="birthday"><br>
    靓照:<input type="file" name="pic" value="选择文件"><br>
    地址:
    <select name="city" id="1">
        <option value="bj">北京</option>
        <option value="sh" selected>上海</option>
        <option value="gz">广州</option>
    </select><br>

    <input type="submit" value="注册">
    <input type="reset" value="重置"> <br>
    <input type="button" value="自定义按钮">
    <hr>
    <button type="submit">注册</button>
    <button type="reset">重置</button>
    <button type="button">按钮</button>
</form>
</body>
</html>